- --- In primenumbers@yahoogroups.com,

Kevin Acres <research@...> wrote:

> You'll see why I'm thinking of bringing in some liquid nitrogen

Indeed. I hope you are not yet under water in OZ.

> to cool down the cpu when this search is finished :-)

> [14, 46, 9.85]

4 instances of 15/16 are too small to conclude much;

> [15, 4, 11.5]

how may 14's produced your 18+ cases of 15/16?

David - --- In primenumbers@yahoogroups.com,

Kevin Acres <research@...> wrote:

> x=a*x+b either is a square or has a square as a major factor.

Suppose that we want to start with a square and get a square.

Then we must solve the Diophantine equation

y^2 = a*x^2 + b

For any pair (a,b), Dario will tell us all the solutions:

http://www.alpertron.com.ar/QUAD.HTM

David